THE QUANTITATIVE SEPARATION OF PURINES, PYRIMIDINES, AND NUCLEOSIDES BY PAPER CHROMATOGRAPHY
نویسندگان
چکیده
منابع مشابه
The separation and quantitative estimation of purines and pyrimidines in minute amounts.
The investigation of an entire series of compounds of great biological importance, the nucleic acids, nucleotides, and related substances, has been impeded considerably by the lack of specific methods for the characterization and estimation of their nitrogenous constituents. Many problems concerning the composition, metabolism, and biological functions of these substances cannot even be approac...
متن کاملThe quantitative separation of estrogens by paper partition chromatography.
The varying success of known chromat’ographic procedures for the separation and identification of microquantities of estrogens (1, 2) has led to the development of paper partit!ion chromatographic techniques which are reported here. These t’echniques permit rapid separation, identification, and quantitative estimation of free est.rogens in biological materials. The solvent systems of o-dichloro...
متن کاملDegradation of purines and pyrimidines by microorganisms.
[This corrects the article on p. 403 in vol. 40.].
متن کاملEndothelium-derived vasoconstriction by purines and pyrimidines.
The article by Tölle et al1 claims to show for the first time that adenosine 5 -tetraphosphate (AP4) is released on mechanical stimulation from human microvascular endothelial cells in the perfused rat kidney and, further, that AP4 is the most potent mediator of vascular smooth muscle constriction via P2X1 receptors or, indeed, via noradrenaline. It is well established that ATP and UTP released...
متن کاملNucleotide Metabolism – Purines and Pyrimidines
Nucleotide metabolism results in the synthesis of the four nucleotides that form DNA. These are further divided in two categories: purines and pyrimidines. Their construction and degradation takes place in a progression of single steps, while different enzymes and cofactors are involved in the process. Beside degradation, there is also a form of reprocessing purine and pyrimidine nucleotides, d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1948
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)57261-6